Can Mechanical Injury Really Trigger Relapsing Polychondritis? The First Report From A Large Case Series
Objectives The triggers of relapsing polychondritis (RPC) are not fully characterized. This study was performed to explore the association between mechanical injuries and RPC.
Methods The history of mechanical injuries of 127 RPC patients was reviewed and confirmed. The characteristics and survivals of patients with mechanical injuries were analyzed.
Results Fifty-four patients (42.5%) had 63 mechanical injuries, among which 17 were cartilage-related. Thirty mechanical injuries in 28 patients occurred in the preceding one year before disease onset. Patients with mechanical injuries(n=54) had a higher proportion of female gender (59.3% vs 38.4%, P=0.002) and similar features compared to those without injuries(n=73), regarding clinical manifestations and mortality rate. Among 54 patients with mechanical injuries, patients with cartilage related injury(n=17) had a significantly higher rate of tracheobronchial chondritis (64.7% vs 27%, P= 0.008), a significantly lower rate of auricular chondritis (35.3% vs 67.6%, P=0.026) and a relatively higher mortality rate(29.4% vs 8.1%, P=0.041) compared with those with non-cartilage related injury(n=37).
Conclusion Our findings suggest that both cartilage-related and non-cartilage related injury may be triggers of RPC and patients with cartilage related injury seem to be more severe than those without.
Figure 1
Figure 2
This is a list of supplementary files associated with this preprint. Click to download.
Posted 18 Sep, 2020
On 28 Dec, 2020
Received 11 Dec, 2020
On 05 Dec, 2020
Received 21 Nov, 2020
On 19 Nov, 2020
Invitations sent on 13 Nov, 2020
On 16 Sep, 2020
On 15 Sep, 2020
On 15 Sep, 2020
On 15 Sep, 2020
Can Mechanical Injury Really Trigger Relapsing Polychondritis? The First Report From A Large Case Series
Posted 18 Sep, 2020
On 28 Dec, 2020
Received 11 Dec, 2020
On 05 Dec, 2020
Received 21 Nov, 2020
On 19 Nov, 2020
Invitations sent on 13 Nov, 2020
On 16 Sep, 2020
On 15 Sep, 2020
On 15 Sep, 2020
On 15 Sep, 2020
Objectives The triggers of relapsing polychondritis (RPC) are not fully characterized. This study was performed to explore the association between mechanical injuries and RPC.
Methods The history of mechanical injuries of 127 RPC patients was reviewed and confirmed. The characteristics and survivals of patients with mechanical injuries were analyzed.
Results Fifty-four patients (42.5%) had 63 mechanical injuries, among which 17 were cartilage-related. Thirty mechanical injuries in 28 patients occurred in the preceding one year before disease onset. Patients with mechanical injuries(n=54) had a higher proportion of female gender (59.3% vs 38.4%, P=0.002) and similar features compared to those without injuries(n=73), regarding clinical manifestations and mortality rate. Among 54 patients with mechanical injuries, patients with cartilage related injury(n=17) had a significantly higher rate of tracheobronchial chondritis (64.7% vs 27%, P= 0.008), a significantly lower rate of auricular chondritis (35.3% vs 67.6%, P=0.026) and a relatively higher mortality rate(29.4% vs 8.1%, P=0.041) compared with those with non-cartilage related injury(n=37).
Conclusion Our findings suggest that both cartilage-related and non-cartilage related injury may be triggers of RPC and patients with cartilage related injury seem to be more severe than those without.
Figure 1
Figure 2